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Device for underwater concrete elevation measurement and use method

A technology for underwater concrete and elevation measurement, which is used in measurement devices, height/level measurement, surveying and navigation, etc. It can solve the problems of wasting materials, inaccurate results, increasing costs, etc., and achieve a reasonable structure.

Inactive Publication Date: 2021-10-08
CHINA MCC17 GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Insufficient concrete pouring height will affect the quality of the pile foundation; excessive concrete pouring height will waste materials and increase costs
[0003] There are deficiencies in the existing underwater concrete elevation measurement devices: one is to determine the pouring volume of concrete by calculating and considering relevant empirical coefficients; the other is to use the method of measuring rope and measuring hammer to estimate the pouring height of concrete
These two methods have high requirements for the relevant work experience of engineering and technical personnel, and the results obtained are not accurate.

Method used

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  • Device for underwater concrete elevation measurement and use method
  • Device for underwater concrete elevation measurement and use method
  • Device for underwater concrete elevation measurement and use method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] refer to Figure 1-4 , a device for underwater concrete elevation measurement, comprising a first section of hollow steel pipe 8, the shape of the outer wall of the bottom end of the first section of hollow steel pipe 8 is set to be tapered, and the top outer wall of the first section of hollow steel pipe 8 is threaded with a connecting ring 3, The inner wall of the connecting ring 3 is threadedly connected with an extended hollow steel pipe 1, and the outer walls of the extended hollow steel pipe 1 and the first section of the hollow steel pipe 8 are respectively provided with a first monitoring airbag 2 and a second monitoring airbag 4, the first monitoring airbag 2 and the second monitoring airbag. A blind pipe 16 is arranged between the monitoring airbags 4, a connecting mechanism is arranged on the inner wall of the connecting ring 3, a stabilizing mechanism is arranged on the outer wall of the first hollow steel pipe 8, and a pressure detection mechanism is arrange...

Embodiment 2

[0036] Embodiment 2: When adjusting the elevation of the underwater concrete, the entire device is first placed on the bottom of the hole by a firm mechanism, and the height from the bottom of the hole to the water surface is measured as H, and then left for a period of time, when the first monitoring airbag 2 and the second After the pressure in the second monitoring airbag 4 is stable, the pressure inside the first monitoring airbag 2 is detected by the pressure detector 10 and recorded as P1, and then the concrete is poured. The pressure of the monitoring airbag 2 is detected again and recorded as P2, h1 represents the concrete pouring height; h2 represents the height of the remaining water column in the hole, so it can be calculated according to the formula: P 1 = ρ 水 gH, P 2 = ρ 混凝土 gh 1 +ρ 水 gh 2 , H=h 1 + h 2 , to calculate the concrete pouring height, when the whole device is placed at the bottom of the hole, due to the tension of the telescopic spring 7, a plur...

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Abstract

The invention discloses a device for underwater concrete elevation measurement and a use method. The device comprises a first hollow steel pipe, the outer wall of the bottom end of the first hollow steel pipe is conical, the outer wall of the top end of the first hollow steel pipe is in threaded connection with a connecting ring, and the inner wall of the connecting ring is in threaded connection with a lengthened hollow steel pipe; a first monitoring air bag and a second monitoring air bag are correspondingly arranged on the outer wall of the lengthened hollow steel pipe and the outer wall of the first hollow steel pipe, a blind pipe is arranged between the first monitoring air bag and the second monitoring air bag, and a connecting mechanism is arranged on the inner wall of the connecting ring. When the device is used for elevation of underwater concrete, the whole device is placed at the bottom of a hole through a stabilizing mechanism, the height from the bottom of the hole to the water surface is measured and recorded as H, then standing is carried out for a period of time, and after the pressure intensity in the first monitoring air bag and the pressure intensity in the second monitoring air bag are stable, the pressure intensity in the first monitoring air bag is detected through a pressure intensity detection mechanism.

Description

technical field [0001] The invention relates to the technical field of concrete elevation, in particular to a device and a use method for underwater concrete elevation measurement. Background technique [0002] With the vigorous development of my country's infrastructure construction, more and more high-rise buildings, large bridges and highways are being constructed, and the application of pile foundations, underground diaphragm walls and other structures in these engineering constructions is essential. How to effectively control the height of underwater concrete pouring in the construction process of pile foundations has always been a problem that engineers and technicians need to focus on and pay attention to. Insufficient concrete pouring height will affect the quality of the pile foundation; excessive concrete pouring height will waste materials and increase costs. [0003] There are deficiencies in the existing underwater concrete elevation measuring devices: first, d...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D15/06E02D33/00G01C5/06G06F30/13
CPCE02D15/06E02D33/00G01C5/06G06F30/13
Inventor 夏志成张石磊王瀚
Owner CHINA MCC17 GRP